I designed the booking/checkout page for an unknown airline. I wanted to move away from the regular designs and do something that would be consistent throughout mobile and desktop. The background images of the Outbound and Inbound are based on when their flights will take off. For example- if it's early morning, the background would be of sunrise. This will help the user to remember when his flight is scheduled. I also like using pastel and coral colors, hence the color of the buttons.